Grizzly G0449 Owner's Manual page 42

Adjusting Drums Perpendicular to
Feed Direction
The tolerances for having the drum perpendicular
to the feed direction allow up to
from one side to the other (see Figure 51). If the
drums are not perpendicular to the feed direction
(in other words, parallel to the conveyor rollers),
they may put a side load on the conveyor belt dur-
ing operation, forcing the conveyor to track off to
the side and possibly causing damage.
To adjust the drums perpendicular to the feed
direction:
1. DISCONNECT POWER TO SANDER!
2. Check to make sure the conveyor roller is
parallel to the machine frame, and make
adjustments if needed. (Refer to Page 38.)
3.
Open the top and pulley covers and remove
the V-belts (refer to Page 35 for V-belt
removal instructions).
4.
Remove the sandpaper from the drums for
best results.
5.
At both ends of the rear drum, measure the
distance between the edge of the rear drum
and the rear upper frame, as shown in Figure
52. The difference between these two mea-
surements will tell you how close the drum is
to being perpendicular to the feed direction
(assuming that the conveyor roller is parallel
to the machine frame).
— If the difference between the two measure-
ments at each end are within
Step 8.
-40-
⁄ " difference
1
8
Figure 52. Measuring distance between edge of
6.
7.
⁄ ", skip to
1
8
rear drum and the upper frame.
— If the difference between the two measure-
ments at each end is more than
tinue to the next step.
Loosen the rear drum pillow bearing lock
nuts, shown in Figure 53.
Front Drum
Rear Drum
Set Screws
Lock Nuts
Figure 53. Front and rear drum adjustment
locations.
Move one end of the drum forward or back-
ward as needed in the slotted holes until the
distance between the rear upper frame angle
and drum is within ⁄ " at each end, then tight-
1
8
en the rear drum pillow bearing lock nuts.
G0449/G0450 37" Drum Sander
⁄ ", con-
1
8
Lock Nuts